Test Index

WAEC Agriculture 2020 Paper

Question : 49

Total: 50

Solution:

Concept:

Percentage change in quantity demanded is calculated as:

\frac{\text{change in quantity demanded}}{\text{original quantity}} \times 100

Explanation:

Original quantity demanded at N20 per kg is 12,000 kg.

New quantity demanded at N30 per kg is 8,000 kg.

Change in quantity demanded

= 12{,}000 - 8{,}000 = 4{,}000

kg.

This change is expressed as a percentage of the original quantity.

Percentage change

= \frac{4{,}000}{12{,}000} \times 100 = 33.33\%

Rounded to the nearest whole number, this is 33%.

Answer:

A. 33%

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